WO2006067244A1 - Syringe plunger which serves as a needle guard - Google Patents

Syringe plunger which serves as a needle guard Download PDF

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Publication number
WO2006067244A1
WO2006067244A1 PCT/ES2005/000549 ES2005000549W WO2006067244A1 WO 2006067244 A1 WO2006067244 A1 WO 2006067244A1 ES 2005000549 W ES2005000549 W ES 2005000549W WO 2006067244 A1 WO2006067244 A1 WO 2006067244A1
Authority
WO
WIPO (PCT)
Prior art keywords
plunger
needle
lock
sectors
fins
Prior art date
Application number
PCT/ES2005/000549
Other languages
Spanish (es)
French (fr)
Inventor
José CORONIL MUÑOZ
Original Assignee
Coronil Munoz Jose
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Coronil Munoz Jose filed Critical Coronil Munoz Jose
Publication of WO2006067244A1 publication Critical patent/WO2006067244A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles

Definitions

  • the present invention aims at a syringe in which the needle used is housed inside its plunger without it being able to exit it.
  • the glass syringe system for the subcutaneous introduction of medications was invented by the French biologist and physician Carlos Gabriel Pravaz in 1847. This system has been used until the 1970s, when the appearance of the plastic syringes replaced the syringes of glass.
  • Syringes or plastic injection have the sanitary advantage of being single-use. Once the needle is used, it is covered again and stored in the cap. In our opinion, there is a risk that the person who manipulates the needle can be punctured when he wants to store the used needle inside the cap, more precisely at the moment when the fingers confront said cap with the tip of the needle. These types of accidents can lead to diseases.
  • the present invention consists in the modification of the plunger of a plastic syringe that in a single body forms the outer fins of this plunger on which the index fingers and the user's heart are supported to press with the thumb and make the journey inside the cylinder to inject the medication.
  • the cylindrical body or sleeve of the syringe being hollow, receives in its interior the plunger that in turn has crimped at its lower end to the piston, which exerts pressure on the inner walls of that cylinder compressing the air or liquid developing the function for which it was devised.
  • fins are adapted just like the one the cylinder has, but covering its mouth with a plastic sheet (same material as the rest).
  • This sheet acts as a membrane-shaped lock and is divided into four circular sectors that fold into the plunger. These sectors are part of the body.
  • the thickness of the sheet that forms the circular sectors must be thin enough to easily fold into the plunger when the needle is introduced with a small pressure inside.
  • This plastic sheet is resistant enough so that the needle, once inside the plunger, does not leave it regardless of the movement that occurs inside. In this way, the upper end or head is closed by the lock.
  • This hole serves as a guide to put the needles inside the plunger.
  • the plastic sheet will serve as a retainer to prevent its exit. This way you get that:
  • Figure 1 shows the profile of the plunger inside which the needle appears.
  • Figure 2 shows the plan of the fin assembly plus the mobile piston lock.
  • Figure 3 shows a perspective of the fin with the lock.
  • Figure 4 shows the elevation of the cut of the fin according to the cutting line 3-3.
  • Figure 5 shows a perspective of the whole of the invention. Detailed presentation of an embodiment of the invention
  • Figure 1 shows the profile of a plunger (1) of the syringe in which the needle (2) is housed.
  • the first thing that goes into the hole of the Plunger (1) is the tip (11) of the needle (2) which is introduced through the opening (8) of the upper head (9) of the plunger (1). In this way, the tip (11) of the needle (2) rests on the lower base (12) of the plunger (1).
  • the piston (14) is inserted into the lower end of the plunger (1).
  • Figure 2 shows the body plan (3) that forms the fins (4) plus the lock (5).
  • the forms that adopt the body (3) that forms the fins (4) can be circular, rectangular etc, all these forms being known in the state of the art.
  • the body (3) containing the fins (4) has a circular hole (6) in which the plunger (1) is encased and inserted so that the fins (4) do not move on the outer surface of the plunger (1).
  • the fins (4) facilitate the pushing of the piston, which has not been shown, along the inside of the piston (1).
  • the lock (5) is constituted by thinner sheets than the body of the fins (4).
  • the thickness of the sheet that forms the four circular sectors (7) must be thin enough to easily fold into the plunger (1) and be able to introduce with a small pressure the needle (2) already used inside the plunger (one). This plastic sheet is strong enough so that the needle (2), once inside the plunger (1) does not leave it, regardless of the movement that is caused. In this way, the upper end or head (9) of the plunger (1) is closed by the lock (5).
  • This hole (8) serves as a guide to put the needle (2) inside the plunger (1).
  • the size of this hole (8) is small enough to not allow the exit of the needle (2) once introduced in the plunger (1), since the diameter is less than the maximum thickness of the head (13) of the needle (2). Therefore, the diameter of this hole ranges between 2.5 and 4 mm.

Abstract

The invention relates to a syringe comprising a plunger (1) which is equipped with a body. The invention is characterised in that the body (3), which forms the flange (4), contains a lock (5) which is made from a single piece of plastic comprising: four plastic circular sectors (7) which are formed by two diametral incisions and which have a smaller thickness than that of the body (3), and a central circular cavity (8) which has a diameter of between 2.5 and 4 mm and which is smaller than the maximum thickness of the head (13) of the needle (2). In this way, the above-mentioned lock (5) covers the external opening (6) in the plunger. According to the invention, when the panel comprising the four sectors (7) is folded inwards into the plunger (1), the needle (2) can be introduced therein with the application of a small pressure, the aforementioned panel being sufficiently strong to prevent the needle (2) from leaving the plunger (1).

Description

Embolo de jeringa para guardar Ia aguja Syringe plunger to store the needle
DESCRIPCIÓNDESCRIPTION
Indicación del sector de Ia técnicaIndication of the technical sector
La presente invención tiene por objeto una jeringuilla en Ia que Ia aguja utilizada se aloja en el interior de su émbolo sin que ésta pueda salir del mismo. Estado de Ia técnica anteriorThe present invention aims at a syringe in which the needle used is housed inside its plunger without it being able to exit it. State of the prior art
El sistema de jeringuillas de vidrio para Ia introducción subcutánea de medicamentos fue inventado por el biólogo y médico francés Carlos Gabriel Pravaz en 1847. Este sistema se ha utilizado hasta los años setenta, momento en que Ia aparición de las jeringuillas de plástico sustituyeron a las jeringas de vidrio.The glass syringe system for the subcutaneous introduction of medications was invented by the French biologist and physician Carlos Gabriel Pravaz in 1847. This system has been used until the 1970s, when the appearance of the plastic syringes replaced the syringes of glass.
Las jeringas o inyección de plástico tienen Ia ventaja sanitaria de ser de un solo uso. Una vez usada Ia aguja, se vuelve a cubrir y guardar en el capuchón. A nuestro entender, existe el riesgo de que Ia persona que manipula Ia aguja se pueda pinchar cuando quiere guardar Ia aguja usada dentro del capuchón, más exactamente en el momento en que los dedos confrontan dicho capuchón con Ia punta de Ia aguja. Este tipo de accidentes pueden acarrear contagios de enfermedades. Explicación de Ia invenciónSyringes or plastic injection have the sanitary advantage of being single-use. Once the needle is used, it is covered again and stored in the cap. In our opinion, there is a risk that the person who manipulates the needle can be punctured when he wants to store the used needle inside the cap, more precisely at the moment when the fingers confront said cap with the tip of the needle. These types of accidents can lead to diseases. Explanation of the invention
La presente invención consiste en Ia modificación del émbolo de una jeringuilla plástico que en un solo cuerpo conforma las aletas exteriores de este émbolo sobre el que se apoyan los dedos índices y corazón del usuario para presionar con el dedo pulgar y que realice el recorrido dentro del cilindro para inyectar el medicamento.The present invention consists in the modification of the plunger of a plastic syringe that in a single body forms the outer fins of this plunger on which the index fingers and the user's heart are supported to press with the thumb and make the journey inside the cylinder to inject the medication.
El cuerpo cilindrico o camisa de Ia jeringa al ser hueco, recibe en su interior el émbolo que a su vez tiene engarzado en su extremo inferior al pistón, el cual ejerce presión sobre las paredes internas de ese cilindro comprimiendo el aire o líquido desarrollando Ia función para Ia que fue ideada. A su vez, en Ia parte superior del émbolo, se adaptan unas aletas igual que Ia que tiene el cilindro, pero cubriendo su boca con una lámina de plástico (mismo material que el resto). Dicha lámina hace de cerradura con forma de membrana y esta dividida en cuatro sectores circulares que se pliegan hacia el interior del émbolo. Estos sectores forman parte del cuerpo. El espesor de Ia lámina que conforma los sectores circulares debe ser Io suficientemente fino para plegarse fácilmente hacia el interior del émbolo cuando se introduce con una pequeña presión Ia aguja en su interior. Esta lámina de plástico es Io suficientemente resistente para que Ia aguja, una vez en el interior del émbolo no salga del mismo independientemente del movimiento que se produzca en su interior. De esta forma, el extremo o cabeza superior queda cerrada por Ia cerradura.The cylindrical body or sleeve of the syringe being hollow, receives in its interior the plunger that in turn has crimped at its lower end to the piston, which exerts pressure on the inner walls of that cylinder compressing the air or liquid developing the function for which it was devised. In turn, in the upper part of the plunger, fins are adapted just like the one the cylinder has, but covering its mouth with a plastic sheet (same material as the rest). This sheet acts as a membrane-shaped lock and is divided into four circular sectors that fold into the plunger. These sectors are part of the body. The thickness of the sheet that forms the circular sectors must be thin enough to easily fold into the plunger when the needle is introduced with a small pressure inside. This plastic sheet is resistant enough so that the needle, once inside the plunger, does not leave it regardless of the movement that occurs inside. In this way, the upper end or head is closed by the lock.
En Ia lámina que cubre Ia boca superior del émbolo se realizan dos cortes diametrales formándose cuatro sectores circulares. Además, en el centro de los cuatro sectores se halla un orificio circular de diámetro de entreIn the sheet that covers the upper mouth of the plunger two diametral cuts are made forming four circular sectors. In addition, in the center of the four sectors there is a circular hole with a diameter between
2,5 y 4 mm. Este orificio sirve de guía para meter las agujas en el interior del émbolo.2.5 and 4 mm. This hole serves as a guide to put the needles inside the plunger.
Una vez realizada Ia operación de introducir Ia aguja en el interior del émbolo, Ia lámina de plástico servirá de retén para impedir su salida. De esta forma se consigue que:Once the operation of introducing the needle inside the plunger has been performed, the plastic sheet will serve as a retainer to prevent its exit. This way you get that:
• El sanitario no necesita buscar un recipiente adicional para depositar Ia aguja con el capuchón para su desecho.• The toilet does not need to look for an additional container to deposit the needle with the cap for disposal.
• Se evita el riesgo de pincharse al no tener el sanitario que poner el capuchón a Ia aguja. • Se contribuye a proteger el medio ambiente al utilizar el émbolo como contenedor de agujas.• The risk of puncturing is avoided by not having the toilet to put the cap on the needle. • It helps to protect the environment by using the plunger as a needle container.
• No altera el costo de fabricación de Ia jeringa. Breve descripción del contenido de los dibujos• It does not alter the cost of manufacturing the syringe. Brief description of the content of the drawings
La figura 1 muestra el perfil del émbolo en cuyo interior aparece Ia aguja.Figure 1 shows the profile of the plunger inside which the needle appears.
La figura 2 muestra Ia planta del conjunto aleta más cerradura móvil del émbolo.Figure 2 shows the plan of the fin assembly plus the mobile piston lock.
La figura 3 muestra una perspectiva de Ia aleta con Ia cerradura.Figure 3 shows a perspective of the fin with the lock.
La figura 4 muestra el alzado del corte de Ia aleta según Ia línea de corte 3-3.Figure 4 shows the elevation of the cut of the fin according to the cutting line 3-3.
La figura 5 muestra una perspectiva del conjunto de Ia invención. Exposición detallada de un modo de realización de Ia invenciónFigure 5 shows a perspective of the whole of the invention. Detailed presentation of an embodiment of the invention
La figura 1 muestra el perfil de un émbolo (1) de Ia jeringa en cuyo interior se aloja Ia aguja (2). Lo primero que se introduce en el orificio del émbolo (1) es Ia punta (11) de Ia aguja (2) Ia cual se introduce por Ia apertura (8) de Ia cabeza superior (9) del émbolo (1). De esta forma, Ia punta (11) de Ia aguja (2) se apoya en Ia base inferior (12) del émbolo (1). El pistón (14) está insertado en el extremo inferior del émbolo (1). En Ia figura 2 se observa Ia planta del cuerpo (3) que conforma las aletas (4) más Ia cerradura (5). Las formas que adoptan el cuerpo (3) que conforma las aletas (4) puede ser circular, rectangular etc, siendo todas estas formas conocidas en el estado del arte. En Ia figura 3 se observa que el cuerpo (3) que contiene las aletas (4) tiene un orificio (6) circular en el que se encasquilla e inserta el émbolo (1) de tal forma que las aletas (4) no se desplazan sobre Ia superficie exterior del émbolo (1). De esta forma, las aletas (4) facilitan el empujado del pistón, el cual no se ha representado, a Io largo del interior del émbolo (1).Figure 1 shows the profile of a plunger (1) of the syringe in which the needle (2) is housed. The first thing that goes into the hole of the Plunger (1) is the tip (11) of the needle (2) which is introduced through the opening (8) of the upper head (9) of the plunger (1). In this way, the tip (11) of the needle (2) rests on the lower base (12) of the plunger (1). The piston (14) is inserted into the lower end of the plunger (1). Figure 2 shows the body plan (3) that forms the fins (4) plus the lock (5). The forms that adopt the body (3) that forms the fins (4) can be circular, rectangular etc, all these forms being known in the state of the art. In Figure 3 it is observed that the body (3) containing the fins (4) has a circular hole (6) in which the plunger (1) is encased and inserted so that the fins (4) do not move on the outer surface of the plunger (1). In this way, the fins (4) facilitate the pushing of the piston, which has not been shown, along the inside of the piston (1).
En Ia presente invención, tal y como se observa en las figuras 3 y 4, se propone además, cubrir el orificio (6) superior del émbolo (1) que contiene las aletas (4) con una lámina del mismo material con el que se ha construido el cuerpo (3), el cual es generalmente plástico. Dicha lámina conforma una membrana que hace de cerradura (5) y está dividida en cuatro sectores circulares (7) que se pliegan hacia el interior del émbolo (1) cuando se presiona. Estos sectores (7) forman parte del cuerpo (3) y no se hallan pegado a él con ningún pegamento otro medio. Por tanto, Ia cerradura (5) está constituida por láminas más delgadas que Ia del cuerpo de las aletas (4). El espesor de Ia lámina que conforma los cuatro sectores (7) circulares, debe ser Io suficientemente finos para plegarse fácilmente hacia el interior del émbolo (1) y poder introducir con una pequeña presión Ia aguja (2) ya utilizada en el interior del émbolo (1). Esta lámina de plástico es Io suficientemente resistente para que Ia aguja (2), una vez en el interior del émbolo (1) no se salga del mismo, independientemente del movimiento que se Ie ocasione. De esta forma, el extremo o cabeza superior (9) del émbolo (1) queda cerrada por Ia cerradura (5).In the present invention, as seen in Figures 3 and 4, it is also proposed to cover the upper hole (6) of the plunger (1) containing the fins (4) with a sheet of the same material with which He has built the body (3), which is generally plastic. Said sheet forms a membrane that acts as a lock (5) and is divided into four circular sectors (7) that fold towards the inside of the plunger (1) when pressed. These sectors (7) are part of the body (3) and are not attached to it with any other means glue. Therefore, the lock (5) is constituted by thinner sheets than the body of the fins (4). The thickness of the sheet that forms the four circular sectors (7) must be thin enough to easily fold into the plunger (1) and be able to introduce with a small pressure the needle (2) already used inside the plunger (one). This plastic sheet is strong enough so that the needle (2), once inside the plunger (1) does not leave it, regardless of the movement that is caused. In this way, the upper end or head (9) of the plunger (1) is closed by the lock (5).
En el centro de los cuatro sectores se halla un orificio (8) circular. Este orificio (8) sirve de guía para meter Ia aguja (2) en el interior del émbolo (1). El tamaño de este orificio (8) es Io suficientemente pequeño para no permitir Ia salida de Ia aguja (2) una vez introducida en el émbolo (1), ya que el diámetro es inferior al máximo grosor de Ia cabeza (13) de Ia aguja (2). Por tanto, el diámetro de este orificio oscila entre los 2,5 y 4 mm.In the center of the four sectors is a circular hole (8). This hole (8) serves as a guide to put the needle (2) inside the plunger (1). The size of this hole (8) is small enough to not allow the exit of the needle (2) once introduced in the plunger (1), since the diameter is less than the maximum thickness of the head (13) of the needle (2). Therefore, the diameter of this hole ranges between 2.5 and 4 mm.
Para obtener los cuatro sectores circulares (7) que conforma Ia cerradura (5) se realizan dos cortes diametrales en Ia lámina que conforma Ia cerradura, convirtiéndose en una membrana flexible.To obtain the four circular sectors (7) that make up the lock (5), two diametral cuts are made in the sheet that forms the lock, becoming a flexible membrane.
En Ia figura 5, observamos como Ia aguja (2) se introduce dentro del émbolo (1) a través de Ia cerradura (5), siendo guiada Ia entrada de Ia aguja (2) por el orificio (8). Una vez introducida Ia aguja (2), esta no podrá salir por Ia boca superior (9) del émbolo (1), ya que se Io impedirá Ia cerradura (5). A su vez, el émbolo (1) se haya en el interior de Ia camisa o cilindro, apoyándose el pistón (14) en Ia base inferior (15) de Ia camisa. Indicación de manera que Ia invención es susceptible de aplicación industrialIn Figure 5, we observe how the needle (2) is inserted into the plunger (1) through the lock (5), the entrance of the needle (2) being guided through the hole (8). Once the needle (2) has been introduced, it cannot exit through the upper mouth (9) of the plunger (1), since the lock (5) will be prevented. In turn, the piston (1) is inside the jacket or cylinder, the piston (14) resting on the lower base (15) of the jacket. Indication so that the invention is susceptible of industrial application
De aplicación en jeringas para uso sanitario, que se utilizan para introducir productos en el interior del cuerpo. Application in syringes for sanitary use, which are used to introduce products inside the body.

Claims

REIVINDICACIONES
1. Jeringa a cuyo émbolo (1) se Ie incorpora un cuerpo caracterizado porque a este cuerpo (3) que conforma las aletas (4) contiene una cerradura (5) compuesta por cuatro sectores circulares (7) de material plástico más fino que el cuerpo (3) y un hueco (8) en su centro con forma circular y diámetro comprendido entre 2,5 y 4 mm, inferior al máximo grosor de Ia cabeza (13) de Ia aguja (2), de tal forma que Ia cerradura (5) cubre el orificio (6) externo del émbolo. 1. Syringe whose piston (1) incorporates a body characterized in that this body (3) that forms the fins (4) contains a lock (5) composed of four circular sectors (7) of thinner plastic material than the body (3) and a hole (8) in its center with a circular shape and diameter between 2.5 and 4 mm, less than the maximum thickness of the head (13) of the needle (2), such that the lock (5) covers the outer hole (6) of the plunger.
2. Embolo de jeringa según reivindicación 1 caracterizado porque tanto las aletas (4) como los sectores circulares (7) forman parte de un mismo cuerpo, siendo el grosor de Ia lámina que conforma los sectores circulares (7) más fino que el de las aletas (4) de tal forma que al plegarse Ia lámina de los cuatro sectores (7) hacia el interior del émbolo (1) permite Ia introducción de Ia aguja (2) con una pequeña presión, en el interior del émbolo (1) siendo esta lámina Io suficientemente resistente para impedir Ia salida de Ia aguja (2), del interior del émbolo (1).2. Syringe plunger according to claim 1 characterized in that both the fins (4) and the circular sectors (7) are part of the same body, the thickness of the sheet forming the circular sectors (7) being thinner than that of the fins (4) in such a way that when folding the sheet of the four sectors (7) into the plunger (1) allows the introduction of the needle (2) with a small pressure, inside the plunger (1) being This sheet is strong enough to prevent the exit of the needle (2) from inside the plunger (1).
3. Jeringa cuyo émbolo (1) se encuentra insertado en su extremo (9) más abierto en un cuerpo (3) según reivindicación 2 caracterizado porque los cuatros sectores circulares (7) se obtienen de dos cortes diametrales en Ia lámina que conforma Ia cerradura (4).3. Syringe whose piston (1) is inserted at its most open end (9) in a body (3) according to claim 2 characterized in that the four circular sectors (7) are obtained from two diametral cuts in the sheet that forms the lock (4).
4. Jeringa cuyo émbolo (1) se encuentra insertados en su extremo (9) más abierto en un cuerpo (3) según reivindicación 2 caracterizado porque los cuatros sectores circulares (7) que conforman Ia cerradura (5) así como las aletas (4) forman parte de un solo cuerpo (3) construido en una sola pieza y de plástico. 4. Syringe whose piston (1) is inserted at its most open end (9) in a body (3) according to claim 2 characterized in that the four circular sectors (7) that make up the lock (5) as well as the fins (4 ) are part of a single body (3) built in one piece and made of plastic.
PCT/ES2005/000549 2004-12-21 2005-10-14 Syringe plunger which serves as a needle guard WO2006067244A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESU200402861 2004-12-21
ES200402861U ES1059151Y (en) 2004-12-21 2004-12-21 SYRINGE PAD TO SAVE THE NEEDLE.

Publications (1)

Publication Number Publication Date
WO2006067244A1 true WO2006067244A1 (en) 2006-06-29

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Country Link
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WO (1) WO2006067244A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2703575A (en) * 1952-07-18 1955-03-08 Chibret Rene Hypodermic syringe made of plastic material
EP0315306A1 (en) * 1987-09-26 1989-05-10 Hans Skovgard Jensen Syringes and probe needles
FR2648715A1 (en) * 1989-06-27 1990-12-28 Gardien Annick Device for storing the needle of disposable syringes (before and after use)
FR2698006A1 (en) * 1991-02-11 1994-05-20 Omarouayache Nour Eddine Plastic medical syringe, avoiding accidental pricking - has needle inserted into end of hollow plunger with transverse holes beneath flange allowing retention of inserted needle cap

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2703575A (en) * 1952-07-18 1955-03-08 Chibret Rene Hypodermic syringe made of plastic material
EP0315306A1 (en) * 1987-09-26 1989-05-10 Hans Skovgard Jensen Syringes and probe needles
FR2648715A1 (en) * 1989-06-27 1990-12-28 Gardien Annick Device for storing the needle of disposable syringes (before and after use)
FR2698006A1 (en) * 1991-02-11 1994-05-20 Omarouayache Nour Eddine Plastic medical syringe, avoiding accidental pricking - has needle inserted into end of hollow plunger with transverse holes beneath flange allowing retention of inserted needle cap

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Publication number Publication date
ES1059151Y (en) 2005-07-01
ES1059151U (en) 2005-03-16

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